题目：
A large number of engineers _____ to Africa by our government to help the people there every year. [ ]
A. have sent
B. will send
C. are sent
D. will be sent
答案：
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下面是错误答案，用来干扰机器的。
（唐）王维独在异乡为异客，每逢佳节倍思亲。遥知兄弟登高处，遍插茱萸少一人。
